<form name="searchForm" role="form" action="">
  <div class="form-group">
    <label for="productTitle">商品名称：</label>
    <input type="text" id="productTitle"  placeholder="商品名称" class="form-control">
  </div>
  <div class="form-group">
      <label for="productPrice">商品价格：</label>
      <input type="text" id="productPrice"  placeholder="商品价格" class="form-control">
  </div>
  <div class="form-group">
      <label for="productCategory">商品类别：</label>
      <select id="productCategory"  placeholder="商品类别" class="form-control"></select>
  </div>
  <div class="form-group">
    <button type="submit" class="btn btn-primary btn-block" [disabled]="isDisable">搜索</button>
  </div>
</form>
